* {
    padding: 0;
    margin: 0;
  }
  
  body {
    text-align: center;
  }
  
  body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    z-index: -10;
    background-image: linear-gradient(45deg,
        rgba(255, 30, 86, 0.8),
        rgba(255, 172, 65, 0.8)),
      url(images/table-music-power-sound-63703.jpg);
  }
  
  h1 {
    font-size: 4.5rem;
    color: white;
    font-family: 'Righteous', cursive;
    width: 100%;
    background-color: #000;
    border-bottom: 5px solid #ffac41;
  }
  
  footer {
    color: white;
    font-family: 'Open Sans', sans-serif;
  }
  
  a {
    color: white;
  }
  
  .f {
    background-image: url(images/tom1.png);
    background-repeat: no-repeat;
  }
  
  .a {
    background-image: url(images/tom2.png);
  }
  
  .s {
    background-image: url(images/tom3.png);
  }
  
  .d {
    background-image: url(images/tom4.png);
  }
  
  .j {
    background-image: url(images/kick.png);
  }
  
  .k {
    background-image: url(images/crash.png);
  }
  
  .l {
    background-image: url(images/snare.png);
  }
  
  .set {
    margin: 10% auto;
  }
  
  
  .pressed {
    box-shadow: 3.5px 3.5px 3.5px 2px #ffac41;
    opacity: 0.9;
  }
  
  
  .drum {
    outline: none;
    border: 10px solid rgb(50, 50, 50);
    font-size: 5rem;
    font-family: 'Open Sans', sans-serif;
    line-height: 2;
    font-weight: 900;
    color: #ffac41;
    border-radius: 15px;
    display: inline-block;
    width: 150px;
    height: 150px;
    text-align: center;
    margin: 10px;
    background-color: white;
    cursor: pointer;
  }
  
  @media screen and (max-width: 576px) {
    .drum {
      width: 100px;
      height: 100px;
      color: transparent;
    }
  
    h1 {
      font-size: 3.2rem;
    }
  
    .j {
      display: none;
    }
  }
  
  @media screen and (max-width: 720px) {
    .drum {
      width: 120px;
      height: 120px;
      font-size: 0px;
    }
  
    h1 {
      font-size: 3.5rem;
    }
  }